Incandescent-lighting plant.



G. DALEN. INCANDESCENT LIGHTING PLANT.

APPLICATION FILED APR-9,1912- Patented Jan.23,1917.

1,21 was [39 44 .unhm

Gunm- W W m m w 2 a. M

7 L J M a .r, 0 LL W 4 W W M WITNESSES:

m2 mum: versus co" PHU70-LITMll.WAS"INGmN. n. c

GUSTAF DALIEN, OF STOCKHOLM, SWEDEN.

INCANDESCENT-LIGHTING PLANT.

Specification of Letters Patent.

Patented Jan. 23, 191?.

Application filed April 9, 1912. Serial No. 689,475.

To all whom it may concern:

Be it known that I, GUsrAF DALIEN, a subject of the King of Sweden, residing at Stadsgarden 18, Stockholm, in the Kingdom of Sweden, have invented certain new and useful Improvements in Incandescent-Lighting Plants, of which the following is a specification.

Owing to the richness in carbon of acetylene or other gaseous compounds of carbon the sectional area of the gas nozzles drawing in air into incandescent gas burners needs to be very small and is liable to be readily choked or obstructed so that the burners are unreliable in use.

The present invention has for object to avoid this inconvenience and for this purpose, contrary to what has hitherto been usual, more than one incandescent lamp is fed with a mixture of gas and air from a common gas outlet nozzle. As the opening of this nozzle has consequently to transmit a corresponding greater quantity of gas it is made of relatively large dimensions so that it is not liable to become choked or obstructed. As the incandescent lamps are fed directly with gas and air from the common nozzle they are so far dependent on one another that they must all burn simultaneously, as it is hardly possible to automatically adjust the gas flowing through the common nozzle according to a varying number of burning lamps. This circumstance is not however an inconvenience in certain cases. In cases however when it is necessary to vary the number of lamps burning simultaneously the gas outlet nozzle is combined with a storer or a receiver from which a conduit extends to the lamps in such a way that the gas supply to the nozzle is automatically opened and closed, so that the pressure in the receiver in maintained constant in spite of the varying consumption of the gas and air contained therein.

Figures 1 and 2 of the accompanying drawings show in section and plan respectively a construction of gas outlet nozzle in combination with a pressure receiver. Fig. 3 shows the nozzle in direct connection with a lighting pipe-system with a number of constantly burning incandescent lamps. Fig. 4 is a similar view to Fig. 1 illustrating a modification.

In the construction shown in Figs. 1 and 2 the pressure receiver consists of a casing 1 closed by a diaphragm 2 or a piston or the like which is loaded in any convenient manner, for instance by the spring 3. 4 is an outlet pipe leading to the place or places where the gas is consumed (the lighting pipe system) and is a supply opening for the gas and air mixture controlled by a pressure valve 6. 7 is an injector the outlet 8 of which communicates with the supply opening 5 and the gas outlet nozzle 9 of which communicates with the gas pipe 10, 11. In the construction shown that part 10 of the gas pipe which is directly connected with the nozzle 9 is constituted by a channel made in the wall of the casing 1. This channel is connected with the pipe 11. The outlet 8 oi the injector is directly connected with the opening 5 although this is not necessary, as the injector 7 may if desired be connected with the casing 1 by means of a suitable conduit and may be arranged at a distance from the same.

In the gas channel 10 a cook or valve 12 or the equivalent is inserted, from which extends a lever 13 adapted to be actuated for opening or closing the cock by a pin 14 connected with the diaphragm 2. Any other suitable lever connection may be arranged between the cook 12 and the diaphragm 2 so constructed that an idle movement is provided in one place so that the cock is moved only when the diaphragm 2 reaches one of its extreme positions. In 1 for this purpose two pins 15 and 16 extend from the lever 14.- and between these pins the lever 13 is so arranged that the pins operate the lever, when the diaphragm 2 is near its extreme positions.

The device works in the following manner. From the conduit 11, 10 gas flows when the cook 12 is in its open position, through the injector nozzle 9 whereby the necessary quantity of air is sucked in through. air holes 17. The mixture of gas and air flows through the pressure valve 6 into the casing 1 the diaphragm 2 of which is moved upwardly against the action of the spring The strength of the spring 3 determines the highest pressure which can prevail in the casing 1 and in the consumption conduit. When the diaphragm 2 is near its highest position the pin 15 strikes the lever 13 and so moves it that the cook 12 is closed and the supply of gas and air mixture to the casing 1 is consequently out in which as an example three incandescent lamps 18 are inserted. I1 is the gas conduit which is directly connected with the nozzle 9 of the injector 7 whereas the outletend 8 of the injector is directly connected with the consumption conduit.

In the modified construction of the apparatus shown in Fig.4 the pressure valve 6 isreplaced by a conduit 20, through which air is sucked into the injector 7, and in whicha suction'valve 19 is inserted. Moreover provision is made for moving the cock 12'suddenly from its open to its closed position. Forthis purpose the pins 15 and 16 and pin l l'are omitted and the lever 13 of the"coek '12 is actuated by a spring 21 tending to keep the cock in its open position. In the construction shown the spring 21 is'located between the lever 13 and the casing 1 and constitutes a prolongation of the lever 13. Moreover the lever 13 is also under the control of a spring 22 arranged between the lever 13 and the diaphragm 2. The strength ofthe springs 21 and 22 is adjusted in such a way'that the spring 22 is stretched during the upward movement of the dlaphragm 2 without displacing the lever 13 which is retained by the spring 21 until the diaphragm 2 has reached its highestposition when the strength of the spring 22 overcomes the spring 21 so that the lever is suddenly drawn upward whereby the lever 13 and the spring 21 extends at an angle to each other. During the succeeding downward movement of the diaphragm 2 the spring 21 and the lever maintain their positions until the spring 22 is so much compressed that it is able to overcome the spring 21 when'the lever 13 is suddenly forced downwardly.

,It should be understood from the foregoing that the entire amount or air necessary for establishing a complete combustion of the. gas in the burners, is introduced by the flow of gas through the common gas outlet nozzle, so that the incandescent gas burn copies of this patent'may be obtained for five cents each, by addressing'th'e ers have no air inlet opening for this purpose.

Having now particularly described and ascertained the nature of the said invention and in what manner the same is to be performed I declare that what I claim is:

1. In an incandescent lighting plant employing gas rich in carbon and comprising plurality of incandescent lamps, a gas nozzle opening into a diverging air intake pipe and operating on the injector principle, a pressure receiver having a varying volume and communicating with said air intake pipe, and a feeding'conduit for said lamps communicating with said pressure receiver and leading to the lamps.

2. In an incandescent lighting plant, a plurality of incandescent lamps employing gas rich in carbon, a gas nozzle openingint'o a diverging air intake pipe and operating on the injector principle, a pressure receiver communicating with said air "intake, pipe and closed by a movabl'e mem'ber, a shutting ofl' device located in the gas conduit, and

means for actuating saiddevice in the extreme positionsof the movable member.

3.111 an incandescent hglit ng plant, a plurality of incandescent lamps "employlng gas rich in carbon, a'g'as nozzle opening intlo a diverging air intake pipe and operating on the injector principle,a pressure receiver communicating with said air intake pipe and closed by a movable member, shutting oil device located in the gas conduit, and means connected with the movable member iior actuating said device in 'the extreme jxdsit'io'ns of the movable member.

1. In an incandescent gas lighting plant, a pressure receiver closed by a loaded diaphragm and "connected with the lighting pipe system, means for delivering gasaiid air into the receiver, a shutting ofi device inserted in the gas supply conduit, a lever extending from said device a spring inserted between thediaphragm and said lever and a second spring tending to maintain the device in either of its extreme positions, the strength of said second spring being adjusted so that the first mentioned spring overcomes the latter in the extreme positions of the diaphragm. v H

In testimony whereof I ailix my signature in presence of two witnesses. I

GUSTAF DALEN.

Witnesses:

VVALDEMAR BoMAN, GRETA PRIEN.

Commissioner cf Patents,

Washington, D C. 

